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Laser Diode Housing from Hardware Store Parts

Laser Diode Housing, MacGyver'ed

Laser Diode Housing, MacGyver'ed. The focus is not THAT horrible, the camera picked up too much splatter.

I never seem to be able to finish my laser engraver/cutter from broken DVD-RW drives project (inspired by Groover’s pocket laser engraver) because I keep opening new DVD drives and keep finding reasons to go on tangent mini-projects. Most of those mini-projects are brought about by my admiration of the amount of useful parts a DVDs has (even a broken one, apparently) and some are caused by specific challenges each new opened drive brings. So, at some point I opened an HP SDVD8821H DVD R/RW/RAM Drive and found this laser diode inside:

Laser diode on a chip with PD arrays (front)

Laser diode on a chip with PD arrays (front)

Laser diode on a chip with PD arrays (back)

Laser diode on a chip with PD arrays (back)

It’s a weird looking laser diode (LD) that is mounted in the same case with the photodiode arrays which makes for simplified optics but I did not have any housing for this shape/size diode. By the way, if anyone reading this knows a professionally made housing for this type of LD, please post a comment with the reference, I would greatly appreciate that. The diode is just slightly smaller than your more standard 9mm LD – it’s smaller diameter is 6.50mm and the larger diameter is 8.25mm so it fits neither 5.6mm nor 9mm standard size housings.
This made me think that I may not be the only one stuck without a proper housing for a laser diode and I decided to see what it would take to build a housing for a laser diode out of parts available only in the disassembled drive itself and in a local hardware store. Here is what came out
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Recent Comments
  • CHAARI: need an eagle file for the control of a stepper motor with easy drive or a microstepping driver
  • admin: Awesome! Thank you very much for sharing, Dani!
  • Dani: Here is my version, not perfect but I learned a lot. http://youtu.be/yrOzLo7bk_E
  • Dani: Thanks for your reply! :)
  • Andreas Carmblad: Thanks for answer :) I use easydriver yes. The problem is solved though. I thought I was supposed...
  • admin: Hi Andreas, You did not specify which stepper motor controller you are using and it is an important bit of...
  • Andreas Carmblad: I would really need some help with this. I can’t get it to work. The axel of the motor is...
  • jordan: whoops just realised the error in my previous post, 250mW is the output but has nothing to do with the input...
  • jordan: hi, i managed to get my hands on two laser diodes and was a little too eager with the first one (it blew out)...
  • admin: I think you are correct, LinuxCNC should be able to control it using a more widely available CNC servo...